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1363
resultados
Última actualización
13/09/2025 [07:35:00]
Resultados 1000 a 1025 de 1363
Resumen de: WO2025183203A1
The present invention relates to coated particles each comprising a sulfide-based particle having a surface coated with a fluorine-containing organic compound. The fluorine-containing organic compound contains a structural unit (1) that is based on a specific monomer (1) and a structural unit (2) that is based on a specific monomer (2). The average particle diameter of the coated particles is 10 nm to 10 μm.
Resumen de: WO2025183206A1
A positive electrode mixture including: a conductivity aid that is a carbon material; a sulfur-based active material; and a solid electrolyte, wherein the variation in luminance intensity in the same field of view is 0.250 or less in a secondary electron image from a scanning electron microscope, and at least part of the solid electrolyte is crystalline with the crystallite diameter thereof being 40 nm or more.
Resumen de: WO2025179946A1
A nail pressing apparatus, an electrolyte injection device, and a battery production system. The nail pressing apparatus comprises a mounting frame (10), a pressure applying part (20), a first driving part (30) and an elastic part (40). The pressure applying part (20) is movably connected to the mounting frame (10) in a first direction. The first driving part (30) is connected to the mounting frame (10) and comprises a driver (31) and a cam (32), wherein the driver (31) is connected to the cam (32) and is used for driving the cam (32) to rotate. The elastic part (40) is connected to the mounting frame (10) and the pressure applying part (20), is used for applying an elastic force to the pressure applying part (20) so that the pressure applying part (20) abuts against the cam (32), and is configured to move in the first direction when the cam (32) rotates.
Resumen de: WO2025179627A1
A spraying device (104) for a battery electrode sheet, and a manufacturing device (100) for a battery electrode sheet. The spraying device (104) comprises: a spraying portion (204), wherein the spraying portion (204) comprises a cavity (304) used for accommodating a molten coating material (303) to be sprayed onto a battery electrode sheet, and a nozzle (207), the nozzle (207) being in fluid connection with the cavity (304), so that the molten coating material (303) can be sprayed onto the battery electrode sheet from the nozzle (207); and a deformation assembly, wherein the deformation assembly is arranged in the cavity (304), and when powered on, the deformation assembly deforms to change the volume of the cavity (304) used for accommodating the molten coating material (303).
Resumen de: WO2025179932A1
A separator (10), a battery cell, and an electric device. The electric device comprises a battery cell. The battery cell comprises the separator (10). The separator (10) comprises a first region (11) and a second region (12). The second region (12) surrounds the first region (11), and at least a portion of the second region (12) is thinner than the first region (11) in thickness. Thus, the likelihood of lithium plating at the edge of an electrode sheet is reduced.
Resumen de: WO2025179706A1
A housing (21), a casing (2) of a battery (100), a battery (100), an electrical apparatus, and a method for processing a housing (21), relating to the technical field of batteries. The housing (21) is formed with an accommodating cavity (21a) and a mounting port (21b) in communication with the accommodating cavity (21a), the accommodating cavity (21a) is used for accommodating a bare cell (1), a housing wall of the housing (21) comprises a side wall and an end wall, a first end of the side wall encloses to form the mounting port (21b), the end wall is arranged at a second end of the side wall, the end wall and the side wall jointly define the semi-closed accommodating cavity (21a), the side wall is formed with a first region (21c) and a second region (21d), and the hardness of the first region (21c) is lower than the hardness of the second region (21d).
Resumen de: US2025277857A1
A battery management system includes a sensing circuit to acquire a state parameter of each of a plurality of battery cells connected in series; and a control circuit to determine, for each battery cell, a first state of charge (SOC) change which is a difference between a first SOC at a first charge time and a second SOC at a second charge time by applying a SOC estimation algorithm to the state parameter acquired during charging. The control circuit determines a reference factor by applying a statistical algorithm to the first SOC changes of at least two of the plurality of battery cells. The control circuit detects an internal short circuit fault in each battery cell based on the first SOC change of each battery cell and the reference factor.
Resumen de: US2025277858A1
An inspection method for a low-voltage defect of a lithium secondary battery includes performing a microcurrent charging/discharging process having N charging/discharging sections, N being an integer of 2 or more, and for each charging/discharging section, applying a microcurrent to the lithium secondary battery; measuring a change in voltage of the lithium secondary battery before and after each charging/discharging section; and screening for the low-voltage defect of the lithium secondary battery based on the measured change in voltage. The lithium secondary battery having the low-voltage defect is not shipped. The microcurrent for each charging/discharging section is at a current rate of 0.000001 C to 0.0001 C.
Resumen de: US2025277861A1
An electrochemical storage diagnostic system is configured to perform an electrical test to measure energy storage device parameters. The diagnostic system includes a charge management controller, electrically coupled to a power multiplexer, a power converter circuit, and an isolated converter circuit. The charge management controller is programmed with instructions to identify a device under test, selected from at least one member of the plurality of energy storage devices to perform an electrical test. Then, adjust a charge in the secondary energy storage device to a target voltage through the power multiplexer by transferring energy between the secondary energy storage device and a support device, selected from at least one member of the plurality energy storage devices. After that, transfer electrical power through the power multiplexer and power converter circuit to the device under test in order to perform the electrical test. Finally, complete the electrical test.
Resumen de: US2025277842A1
The present disclosure provides an insulation detection apparatus and method, and an energy storage apparatus, and relates to the technical field of energy storage safety. The insulation detection apparatus includes: a coupling conductor and a signal acquisition unit, where the coupling conductor and the signal acquisition unit are electrically connected, the coupling conductor and the signal acquisition unit are used to form an insulation detection loop with a device under test, and the signal acquisition unit is further used to detect an electrical signal in the insulation detection loop. The coupling plate and signal acquisition unit used in the present disclosure have a simple structure and low cost. Compared with the existing insulation impedance detection, the present disclosure has a high detection sensitivity and more reliable detection result.
Resumen de: WO2025180337A1
An electric device. The electric device comprises a battery cell or a battery pack. The battery cell comprises a cover plate assembly, an insulating ring and a monitoring module. The insulating ring is disposed on the side of the cover plate assembly facing the interior of the battery cell. The monitoring module is fixed to the cover plate assembly or the insulating ring.
Resumen de: WO2025180273A1
An electric device, comprising an energy storage device. The energy storage device comprises a battery. The battery comprises a spacer, which is provided with a chip fixing region used for fixing a chip and a tab slot used for allowing a tab to pass through same, wherein the chip fixing region is spaced apart from the tab slot.
Resumen de: WO2025180290A1
A battery cell (100), a battery pack (1000), and an electric device (10000). The battery cell comprises a casing (10), cover plate assemblies (20), an electrode core (30), and a monitoring module (20). The cover plate assemblies are disposed in the casing and match the casing to form an inner cavity, the electrode core and the monitoring module are both disposed in the inner cavity, and the monitoring module is electrically connected to the electrode core.
Resumen de: WO2025180165A1
An electric device comprises a battery. The battery comprises a negative electrode sheet. The negative electrode sheet comprises a negative electrode current collector, and a negative electrode active material layer arranged on at least one side surface of the negative electrode current collector. The negative electrode active material layer comprises a silicon-carbon composite material and a titanium-phosphorus compound. The titanium-phosphorus compound comprises a titanium element and a phosphorus element. The energy density of the battery can be increased, thereby improving the cycle performance of the battery.
Resumen de: WO2025180292A1
Disclosed in the present invention are a direct cooling plate for a battery pack, and the battery pack. The direct cooling plate (100) comprises: a direct cooling plate body, wherein the direct cooling plate body is provided with a first flow channel (12) and a second flow channel (13) which are both in communication with an inlet, the first flow channel (12) being adapted for heat exchange with batteries; and the direct cooling plate body is further provided with a third flow channel (14) in communication with an outlet, the third flow channel (14) being in communication with both the first flow channel (12) and the second flow channel (13) to enable mixing of heat exchange media flowing through the first flow channel (12) and the second flow channel (13).
Resumen de: WO2025183129A1
This lithium secondary battery includes: a positive electrode (11); a negative electrode (12); a separator (13) disposed between the positive electrode (11) and the negative electrode (12); a non-aqueous electrolyte; and a spacer (50) disposed between the separator (13) and either the positive electrode (11) or the negative electrode (12). At the negative electrode (12), lithium metal precipitates during charging, and the lithium metal is dissolved during discharging. The negative electrode (12) contains a lithium alloy containing magnesium. A protective layer (40) containing a fluorinated polymer is disposed on a surface of the negative electrode (12).
Resumen de: WO2025183131A1
This lithium secondary battery includes: a positive electrode (11); a negative electrode (12); and a nonaqueous electrolyte. At the negative electrode (12), lithium metal precipitates during charging, and the lithium metal is dissolved during discharging. A protective layer (40) is disposed on a surface of the negative electrode (12). The protective layer (40) contains a fluorinated polymer and a block copolymer. The block copolymer includes a first polymer portion having a monomer unit A repeating structure, and a second polymer portion having a monomer unit B repeating structure. The fluorinated polymer and the block copolymer are present in the protective layer (40) as separate molecules.
Resumen de: WO2025183052A1
This non-aqueous electrolyte secondary battery includes: a flat electrode body (60) in which a positive electrode (30) to which a positive electrode tab (22) is connected and a negative electrode (40) to which a negative electrode tab is connected are wound via a separator (70); and an exterior body (12). In the exterior body, a laminate sheet including an adhesive resin layer is folded back along a bottom portion, the peripheral edge portions of two sheet elements facing each other are joined, and each sheet element is provided with a housing portion (13) for housing the electrode body and an exterior body flat portion (15) for sealing the opening of the housing portion. When the outermost periphery of the positive electrode is divided into two, the exterior body flat part side and the bottom end side of the housing portion, the positive electrode tab (22) is attached to the exterior body flat portion side and is led out from the top portion of the exterior body. The negative electrode tab 24 is attached to an intermediate periphery between the innermost periphery and outermost periphery of the negative electrode and is led out from the top portion.
Resumen de: WO2025183020A1
This secondary battery comprises: a positive electrode; a negative electrode; a separator that is disposed between the positive electrode and the negative electrode; and a nonaqueous electrolyte solution. At the negative electrode, a metal that is a negative electrode active material is deposited during charging, and the metal is dissolved in the nonaqueous electrolyte solution during discharging. The separator comprises a sheet-shaped base material and a spacer that is disposed on the main surface of the base material. The spacer contains a resin. The degree of swelling of the spacer with respect to the nonaqueous electrolyte solution is 1.1 times to 2 times inclusive.
Resumen de: WO2025179701A1
A busbar and a battery module, relating to the technical field of batteries. The busbar (001) comprises a busbar strip (012) and a plurality of current guide members (011) arranged at intervals. The current guide members (011) each comprise a fuse part (112) and a current guide part (111). The melting point of the fuse parts (112) is lower than those of the busbar strip (012) and the current guide parts (111). Two ends of each fuse part (112) are respectively connected to a current guide part (111) and the busbar strip (012). Each current guide part (111) is used for connecting to a positive electrode or negative electrode of a battery cell.
Resumen de: WO2025179729A1
A battery pack and an electrical device, the battery pack comprising a plurality of first battery cells, the lower limit voltage of the first battery cells being 2.5-3.0 V; and a plurality of second battery cells, the second battery cells and the first battery cells being arranged in series, and the lower limit voltage of the second battery cells being ≤2.0 V. A negative electrode current collector of each second battery cell comprises metal, the metal comprises at least one of aluminum, nickel, molybdenum, titanium, niobium and iron, and the mass ratio of the metal is ≥40% on the basis of the total mass of the negative electrode current collector of the second battery cell.
Resumen de: WO2025179712A1
A relay welding diagnosis method and a power battery system. The method comprises: collecting a first front end voltage and a first rear end voltage of a main positive relay (S301); when it is determined, on the basis of the first front end voltage and the first rear end voltage, that the main positive relay is in a non-welded state, closing a pre-charge relay and collecting a second rear end voltage of the main positive relay, and when it is determined, on the basis of the second rear end voltage, that the pre-charge relay has been successfully closed, collecting a third rear end voltage of a main negative relay (S302); and when it is determined, on the basis of the third rear end voltage, that the main negative relay is in a non-welded state, disconnecting the pre-charge relay and collecting a fourth rear end voltage of the main positive relay, and when it is determined, on the basis of the fourth rear end voltage, that the pre-charge relay has been successfully disconnected, determining that no welding currently exists (S303). Thus, the problem of high detection cost caused by the need for two high-voltage sampling circuits in relay welding detection circuits is solved, and simultaneous detection of a main positive relay and a main negative relay is realized.
Resumen de: WO2025179858A1
An electrical device, which comprises a battery, the battery comprising a battery cover assembly. The battery cover plate assembly comprises a riveting ring, a lower gasket, a cover plate, and a pole body. The riveting ring is sleeved within a mounting hole of the cover plate, and a first crimping edge located above the cover plate and a second crimping edge located below the cover plate are respectively formed on two ends of the riveting ring. The lower gasket is arranged between the second crimping edge and the cover plate. An insulating sealing layer is arranged between the cover plate and the lower gasket as well as between the cover plate and the first crimping edge, and a pressing space is formed between the first crimping edge and the second crimping edge. A pole cover plate is arranged at one end of the pole body extending out of the riveting ring, and the pole cover plate is connected to the first crimping edge.
Resumen de: US2025276413A1
A welding positioning apparatus includes a carrier and a pressing module. The carrier includes a pressing region and placement regions, where the pressing region is formed between two placement regions spaced apart along a first direction. The pressing module includes a pressing block and a driving apparatus, where the driving apparatus is drivingly connected to the pressing block to drive the pressing block to move toward the pressing region along a second direction. A side of the pressing block facing the pressing region is provided with a pressing surface and an avoidance space. The pressing surface is configured to press a portion of a tab of an electrode assembly along the second direction. The avoidance space is located on a side of the pressing surface along the first direction and is open on a side facing the pressing region.
Nº publicación: US2025276355A1 04/09/2025
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Resumen de: US2025276355A1
The present application discloses a die cutting method and apparatus for an electrode plate. The die cutting method for an electrode plate includes: providing an electrode-plate material. The die cutting unit performs die cutting on the electrode-plate material to produce individual electrode plates, each corresponding to the length of a single battery cell. During the die cutting process, a defect detection unit inspects the electrode-plate material for defects. A mark formed during die cutting indicates the boundary of each electrode plate. When a defect is detected, the system determines the defect's location relative to the current electrode plate being cut. Based on the position of the defect, the die cutting operation on the affected electrode plate is terminated, and die cutting is restarted on a new electrode plate. This approach allows for real-time defect management during continuous production, thereby enhancing yield and reliability of electrode plate manufacturing.
BOPI
Sede Electrónica
